java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label24_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 08:22:22,758 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 08:22:22,763 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 08:22:22,776 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 08:22:22,777 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 08:22:22,778 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 08:22:22,779 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 08:22:22,781 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 08:22:22,783 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 08:22:22,784 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 08:22:22,785 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 08:22:22,785 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 08:22:22,786 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 08:22:22,787 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 08:22:22,789 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 08:22:22,789 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 08:22:22,790 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 08:22:22,792 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 08:22:22,794 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 08:22:22,796 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 08:22:22,801 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 08:22:22,802 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 08:22:22,810 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-19 08:22:22,828 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf [2018-09-19 08:22:22,855 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 08:22:22,858 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 08:22:22,859 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 08:22:22,860 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 08:22:22,860 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 08:22:22,860 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 08:22:22,861 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 08:22:22,862 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 08:22:22,862 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-19 08:22:22,862 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 08:22:22,863 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 08:22:22,863 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 08:22:22,863 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 08:22:22,864 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 08:22:22,864 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 08:22:22,864 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 08:22:22,865 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 08:22:22,865 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 08:22:22,865 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 08:22:22,865 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 08:22:22,865 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 08:22:22,867 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 08:22:22,867 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 08:22:22,867 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 08:22:22,868 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 08:22:22,868 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 08:22:22,868 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 08:22:22,868 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 08:22:22,869 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 08:22:22,869 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 08:22:22,869 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 08:22:22,869 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 08:22:22,870 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 08:22:22,870 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 08:22:22,870 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 08:22:22,942 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 08:22:22,963 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 08:22:22,970 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 08:22:22,972 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 08:22:22,973 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 08:22:22,974 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label24_true-unreach-call_false-termination.c [2018-09-19 08:22:23,345 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd1c95432/35df3d77c0ce4f23ba64014e15bbb550/FLAG59545095d [2018-09-19 08:22:23,659 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 08:22:23,660 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label24_true-unreach-call_false-termination.c [2018-09-19 08:22:23,690 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd1c95432/35df3d77c0ce4f23ba64014e15bbb550/FLAG59545095d [2018-09-19 08:22:23,714 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd1c95432/35df3d77c0ce4f23ba64014e15bbb550 [2018-09-19 08:22:23,727 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 08:22:23,731 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 08:22:23,732 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 08:22:23,732 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 08:22:23,739 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 08:22:23,741 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 08:22:23" (1/1) ... [2018-09-19 08:22:23,744 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fc48bdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:22:23, skipping insertion in model container [2018-09-19 08:22:23,745 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 08:22:23" (1/1) ... [2018-09-19 08:22:23,757 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 08:22:24,253 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 08:22:24,274 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 08:22:24,413 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 08:22:24,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:22:24 WrapperNode [2018-09-19 08:22:24,468 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 08:22:24,470 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 08:22:24,470 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 08:22:24,470 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 08:22:24,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:22:24" (1/1) ... [2018-09-19 08:22:24,508 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:22:24" (1/1) ... [2018-09-19 08:22:24,584 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 08:22:24,585 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 08:22:24,585 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 08:22:24,585 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 08:22:24,732 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:22:24" (1/1) ... [2018-09-19 08:22:24,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:22:24" (1/1) ... [2018-09-19 08:22:24,741 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:22:24" (1/1) ... [2018-09-19 08:22:24,744 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:22:24" (1/1) ... [2018-09-19 08:22:24,786 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:22:24" (1/1) ... [2018-09-19 08:22:24,814 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:22:24" (1/1) ... [2018-09-19 08:22:24,829 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:22:24" (1/1) ... [2018-09-19 08:22:24,839 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 08:22:24,840 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 08:22:24,840 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 08:22:24,840 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 08:22:24,842 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:22:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 08:22:24,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 08:22:24,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 08:22:24,921 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 08:22:24,921 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 08:22:24,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 08:22:24,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 08:22:24,922 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 08:22:24,922 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 08:22:28,397 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 08:22:28,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 08:22:28 BoogieIcfgContainer [2018-09-19 08:22:28,399 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 08:22:28,400 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 08:22:28,400 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 08:22:28,405 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 08:22:28,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 08:22:23" (1/3) ... [2018-09-19 08:22:28,407 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a7593e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 08:22:28, skipping insertion in model container [2018-09-19 08:22:28,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:22:24" (2/3) ... [2018-09-19 08:22:28,407 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a7593e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 08:22:28, skipping insertion in model container [2018-09-19 08:22:28,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 08:22:28" (3/3) ... [2018-09-19 08:22:28,410 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label24_true-unreach-call_false-termination.c [2018-09-19 08:22:28,423 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 08:22:28,436 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 08:22:28,501 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 08:22:28,502 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 08:22:28,502 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 08:22:28,503 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 08:22:28,503 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 08:22:28,503 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 08:22:28,504 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 08:22:28,504 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 08:22:28,504 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 08:22:28,537 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states. [2018-09-19 08:22:28,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2018-09-19 08:22:28,555 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:22:28,557 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 08:22:28,559 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:22:28,565 INFO L82 PathProgramCache]: Analyzing trace with hash -1658764377, now seen corresponding path program 1 times [2018-09-19 08:22:28,569 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:22:28,570 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 122 with the following transitions: [2018-09-19 08:22:28,574 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [639], [641], [867], [871], [877], [881], [888], [889], [890], [892] [2018-09-19 08:22:28,659 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:22:28,659 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:22:48,998 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:22:49,000 INFO L272 AbstractInterpreter]: Visited 120 different actions 120 times. Never merged. Never widened. Never found a fixpoint. Largest state had 37 variables. [2018-09-19 08:22:49,027 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:22:52,004 INFO L232 lantSequenceWeakener]: Weakened 119 states. On average, predicates are now at 81.16% of their original sizes. [2018-09-19 08:22:52,005 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:22:53,081 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:22:53,083 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:22:53,083 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 08:22:53,084 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:22:53,091 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 08:22:53,099 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 08:22:53,100 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2018-09-19 08:22:53,103 INFO L87 Difference]: Start difference. First operand 237 states. Second operand 10 states. [2018-09-19 08:22:59,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 08:22:59,061 INFO L93 Difference]: Finished difference Result 622 states and 1061 transitions. [2018-09-19 08:22:59,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-19 08:22:59,065 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 121 [2018-09-19 08:22:59,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 08:22:59,084 INFO L225 Difference]: With dead ends: 622 [2018-09-19 08:22:59,085 INFO L226 Difference]: Without dead ends: 383 [2018-09-19 08:22:59,093 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 124 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2018-09-19 08:22:59,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2018-09-19 08:22:59,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 380. [2018-09-19 08:22:59,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2018-09-19 08:22:59,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 531 transitions. [2018-09-19 08:22:59,179 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 531 transitions. Word has length 121 [2018-09-19 08:22:59,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 08:22:59,180 INFO L480 AbstractCegarLoop]: Abstraction has 380 states and 531 transitions. [2018-09-19 08:22:59,180 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 08:22:59,181 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 531 transitions. [2018-09-19 08:22:59,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-09-19 08:22:59,195 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:22:59,195 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 08:22:59,196 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:22:59,196 INFO L82 PathProgramCache]: Analyzing trace with hash -1648295706, now seen corresponding path program 1 times [2018-09-19 08:22:59,197 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:22:59,197 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 132 with the following transitions: [2018-09-19 08:22:59,200 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [9], [10], [14], [18], [22], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [639], [641], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-09-19 08:22:59,210 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:22:59,210 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:23:30,956 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:23:30,957 INFO L272 AbstractInterpreter]: Visited 124 different actions 242 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 38 variables. [2018-09-19 08:23:30,989 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:23:33,214 INFO L232 lantSequenceWeakener]: Weakened 129 states. On average, predicates are now at 81.16% of their original sizes. [2018-09-19 08:23:33,215 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:23:34,168 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:23:34,168 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:23:34,169 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 08:23:34,169 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:23:34,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 08:23:34,171 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 08:23:34,171 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 08:23:34,171 INFO L87 Difference]: Start difference. First operand 380 states and 531 transitions. Second operand 14 states. [2018-09-19 08:23:43,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 08:23:43,296 INFO L93 Difference]: Finished difference Result 910 states and 1354 transitions. [2018-09-19 08:23:43,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-19 08:23:43,297 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 131 [2018-09-19 08:23:43,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 08:23:43,305 INFO L225 Difference]: With dead ends: 910 [2018-09-19 08:23:43,305 INFO L226 Difference]: Without dead ends: 536 [2018-09-19 08:23:43,310 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 145 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=192, Invalid=620, Unknown=0, NotChecked=0, Total=812 [2018-09-19 08:23:43,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2018-09-19 08:23:43,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 528. [2018-09-19 08:23:43,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2018-09-19 08:23:43,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 701 transitions. [2018-09-19 08:23:43,352 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 701 transitions. Word has length 131 [2018-09-19 08:23:43,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 08:23:43,354 INFO L480 AbstractCegarLoop]: Abstraction has 528 states and 701 transitions. [2018-09-19 08:23:43,354 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 08:23:43,354 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 701 transitions. [2018-09-19 08:23:43,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2018-09-19 08:23:43,358 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:23:43,358 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 08:23:43,359 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:23:43,359 INFO L82 PathProgramCache]: Analyzing trace with hash 1437167854, now seen corresponding path program 1 times [2018-09-19 08:23:43,359 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:23:43,360 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 136 with the following transitions: [2018-09-19 08:23:43,360 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [25], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [639], [641], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-09-19 08:23:43,367 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:23:43,368 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:24:18,996 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:24:18,996 INFO L272 AbstractInterpreter]: Visited 124 different actions 242 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 38 variables. [2018-09-19 08:24:19,006 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:24:21,063 INFO L232 lantSequenceWeakener]: Weakened 133 states. On average, predicates are now at 81.14% of their original sizes. [2018-09-19 08:24:21,063 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:24:21,777 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:24:21,778 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:24:21,778 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 08:24:21,778 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:24:21,779 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 08:24:21,779 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 08:24:21,780 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 08:24:21,780 INFO L87 Difference]: Start difference. First operand 528 states and 701 transitions. Second operand 14 states. [2018-09-19 08:24:32,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 08:24:32,226 INFO L93 Difference]: Finished difference Result 1208 states and 1697 transitions. [2018-09-19 08:24:32,229 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-09-19 08:24:32,229 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 135 [2018-09-19 08:24:32,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 08:24:32,235 INFO L225 Difference]: With dead ends: 1208 [2018-09-19 08:24:32,235 INFO L226 Difference]: Without dead ends: 686 [2018-09-19 08:24:32,237 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 148 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=171, Invalid=585, Unknown=0, NotChecked=0, Total=756 [2018-09-19 08:24:32,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2018-09-19 08:24:32,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 676. [2018-09-19 08:24:32,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 676 states. [2018-09-19 08:24:32,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 881 transitions. [2018-09-19 08:24:32,279 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 881 transitions. Word has length 135 [2018-09-19 08:24:32,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 08:24:32,280 INFO L480 AbstractCegarLoop]: Abstraction has 676 states and 881 transitions. [2018-09-19 08:24:32,280 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 08:24:32,280 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 881 transitions. [2018-09-19 08:24:32,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-09-19 08:24:32,284 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:24:32,284 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 08:24:32,285 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:24:32,285 INFO L82 PathProgramCache]: Analyzing trace with hash 1141527259, now seen corresponding path program 1 times [2018-09-19 08:24:32,285 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:24:32,285 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 141 with the following transitions: [2018-09-19 08:24:32,286 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [9], [10], [14], [18], [22], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [639], [641], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-09-19 08:24:32,292 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:24:32,292 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:25:16,483 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:25:16,484 INFO L272 AbstractInterpreter]: Visited 125 different actions 367 times. Merged at 7 different actions 14 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 38 variables. [2018-09-19 08:25:16,491 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:25:18,020 INFO L232 lantSequenceWeakener]: Weakened 138 states. On average, predicates are now at 81.16% of their original sizes. [2018-09-19 08:25:18,021 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:25:18,693 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:25:18,693 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:25:18,694 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 08:25:18,694 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:25:18,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 08:25:18,695 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 08:25:18,695 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 08:25:18,695 INFO L87 Difference]: Start difference. First operand 676 states and 881 transitions. Second operand 14 states. [2018-09-19 08:25:31,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 08:25:31,062 INFO L93 Difference]: Finished difference Result 1577 states and 2188 transitions. [2018-09-19 08:25:31,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-09-19 08:25:31,063 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 140 [2018-09-19 08:25:31,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 08:25:31,070 INFO L225 Difference]: With dead ends: 1577 [2018-09-19 08:25:31,070 INFO L226 Difference]: Without dead ends: 907 [2018-09-19 08:25:31,073 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 155 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=202, Invalid=668, Unknown=0, NotChecked=0, Total=870 [2018-09-19 08:25:31,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2018-09-19 08:25:31,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 886. [2018-09-19 08:25:31,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 886 states. [2018-09-19 08:25:31,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 1117 transitions. [2018-09-19 08:25:31,117 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 1117 transitions. Word has length 140 [2018-09-19 08:25:31,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 08:25:31,118 INFO L480 AbstractCegarLoop]: Abstraction has 886 states and 1117 transitions. [2018-09-19 08:25:31,118 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 08:25:31,118 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 1117 transitions. [2018-09-19 08:25:31,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-09-19 08:25:31,122 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:25:31,122 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 08:25:31,123 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:25:31,123 INFO L82 PathProgramCache]: Analyzing trace with hash 1285412130, now seen corresponding path program 1 times [2018-09-19 08:25:31,123 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:25:31,123 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 155 with the following transitions: [2018-09-19 08:25:31,124 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [9], [10], [14], [18], [22], [25], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [639], [641], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-09-19 08:25:31,130 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:25:31,130 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:26:37,001 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:26:37,002 INFO L272 AbstractInterpreter]: Visited 126 different actions 504 times. Merged at 8 different actions 33 times. Never widened. Found 8 fixpoints after 2 different actions. Largest state had 38 variables. [2018-09-19 08:26:37,009 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:26:39,221 INFO L232 lantSequenceWeakener]: Weakened 152 states. On average, predicates are now at 81.14% of their original sizes. [2018-09-19 08:26:39,221 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:26:39,902 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:26:39,903 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:26:39,903 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 08:26:39,903 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:26:39,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 08:26:39,904 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 08:26:39,904 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 08:26:39,905 INFO L87 Difference]: Start difference. First operand 886 states and 1117 transitions. Second operand 14 states. Received shutdown request... [2018-09-19 08:26:49,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-09-19 08:26:49,218 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 08:26:49,225 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 08:26:49,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 08:26:49 BoogieIcfgContainer [2018-09-19 08:26:49,225 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 08:26:49,226 INFO L168 Benchmark]: Toolchain (without parser) took 265498.96 ms. Allocated memory was 1.5 GB in the beginning and 3.3 GB in the end (delta: 1.8 GB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -823.5 MB). Peak memory consumption was 962.2 MB. Max. memory is 7.1 GB. [2018-09-19 08:26:49,228 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 08:26:49,229 INFO L168 Benchmark]: CACSL2BoogieTranslator took 736.98 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-19 08:26:49,230 INFO L168 Benchmark]: Boogie Procedure Inliner took 114.92 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 08:26:49,230 INFO L168 Benchmark]: Boogie Preprocessor took 254.81 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 752.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -836.0 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2018-09-19 08:26:49,231 INFO L168 Benchmark]: RCFGBuilder took 3558.87 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 108.0 MB). Peak memory consumption was 108.0 MB. Max. memory is 7.1 GB. [2018-09-19 08:26:49,232 INFO L168 Benchmark]: TraceAbstraction took 260825.28 ms. Allocated memory was 2.3 GB in the beginning and 3.3 GB in the end (delta: 1.0 GB). Free memory was 2.1 GB in the beginning and 2.2 GB in the end (delta: -137.7 MB). Peak memory consumption was 895.2 MB. Max. memory is 7.1 GB. [2018-09-19 08:26:49,237 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 736.98 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 114.92 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 254.81 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 752.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -836.0 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3558.87 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 108.0 MB). Peak memory consumption was 108.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 260825.28 ms. Allocated memory was 2.3 GB in the beginning and 3.3 GB in the end (delta: 1.0 GB). Free memory was 2.1 GB in the beginning and 2.2 GB in the end (delta: -137.7 MB). Peak memory consumption was 895.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 514]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 514). Cancelled while BasicCegarLoop was constructing difference of abstraction (886states) and FLOYD_HOARE automaton (currently 25 states, 14 states before enhancement), while ReachableStatesComputation was computing reachable states (1858 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 237 locations, 1 error locations. TIMEOUT Result, 260.7s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 47.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1120 SDtfs, 4956 SDslu, 2354 SDs, 0 SdLazy, 10508 SolverSat, 1060 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 39.9s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 741 GetRequests, 620 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 7.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=886occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 197.9s AbstIntTime, 5 AbstIntIterations, 5 AbstIntStrong, 0.9938565745751995 AbsIntWeakeningRatio, 0.21745562130177515 AbsIntAvgWeakeningVarsNumRemoved, 2415.794378698225 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 42 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem02_label24_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_08-26-49-251.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem02_label24_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_08-26-49-251.csv Completed graceful shutdown